| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | might have been [prep] | 132 |
|
| 2 | [vb mod] have been for | 62 |
|
| 3 | [modal v] have been for | 62 |
|
| 4 | might [verb] been for | 7 |
|
| 5 | might have be for | 7 |
|
| 6 | might have been for | 7 |
|
| 7 | might have [be] for | 7 |
|
| 8 | might have been for | 7 |
|
| 9 | might [vb infin] been for | 7 |
|
| 10 | might have [been] for | 7 |
|
